JPH0768114B2 - Bath additive - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a bath agent that moisturizes the skin after bathing and gives a smooth and pleasant silky skin resembling the skin of an infant.

[Prior art]

Bath salts contain a substance that cleanses the skin, a substance that promotes blood circulation, a substance that imparts fragrance, etc., and has the effect of cleaning the skin and relieving chills and fatigue, as well as the scent and color of the bath water. It has been widely used in recent years because it is used for giving a pleasant feeling when bathing.

However, consumers, especially women, do not simply seek the above-mentioned effects for bath salts, and in addition to the inherent effects of bath salts on skin cleansing, recovery from fatigue, etc. At the same time, we expect a so-called skin care effect that gives a smooth and smooth skin feel.

This is because the addition of the skin care effect gives not only physical comfort to the woman, but also a feeling of mental and psychological satisfaction, and making the bath truly enjoyable and meaningful.

This can be easily understood by recalling the freshness of the infant's skin, which can be said to be the ideal form of the skin, and its pleasing smoothness. Therefore, in order to meet the above-mentioned desire, an additive for a bath agent, which imparts moisture to the skin as well as smoothness, has been studied. For example,
The use of moisturizing ingredients commonly used in cosmetics can be considered. However, under these circumstances, it is not possible to give the skin a pleasing and smooth feel without using a sticky substance. Further, as an additive which gives smoothness after bathing, for example, jojoba oil (JP-A-52-64415) or an enzyme such as protease (JP-A-60-215621) has been proposed.

However, if you use jojoba oil, although it has a tentative skin care effect, it is the fact that consumers expect more smooth, smooth and moisturizing, and that using enzymes. Is related to smoothness to a certain degree, but has a difficulty in moisturizing,
Since the cleansing of the skin is particularly promoted, it is not preferable as a bathing agent when the cleansing of the skin is not uniquely expected. As described above, the conventional technology has not yet satisfied the consumer sufficiently.

〔Purpose〕

The present invention is to provide a bath agent that gives moisture after bathing and gives a smooth and pleasant silky texture similar to infant skin.

〔Constitution〕

According to the present invention, there is provided a bathing agent comprising a bathing agent containing sodium carbonate and / or sodium hydrogen carbonate as an active ingredient, and chitosan or a modified product thereof.

In the present invention, since sodium carbonate and / or sodium hydrogen carbonate is used as the active ingredient of the bath additive and chitosan or its modified product is used as the additive of the bath additive, it gives moisturized and moisturized skin after bathing. At the same time, it can give the skin a smooth feel that is unprecedented.

The bath agent of the present invention has such a skin care effect.
Although the reason is not clear, addition of a small amount of chitosan or its modified product
Other high molecular weight moisturizers that exert their effects even when added
And cationic polymers such as cationized cellulose
Even when used in large amounts, the skin does not become sticky and
Charcoal, which is the active ingredient, is seen from the point that you can get a fresh feeling.
By the action of sodium acidate and / or sodium hydrogen carbonate
The skin surface during bathing was cleaned and
Chitosan or its modified products -NH₂Or -N H
₃Are aligned in a certain direction with respect to the hexose sugar skeleton, and
The phenomenon of adsorption and deposition like
It seems that the harmony is increased and the smoothness is given.
Be done.

Chitosan used in the present invention is a compound derived from chitin.

Chitin has the general formula (1) As shown in, N-acetyl-D-glucosamine is β-1,
Chitosan is a deacetylated product, which is bound at 4, and can be represented by the general formula (2).

In the present invention, chitosan is defined as one having a deacetylation rate of 40% or more. As chitosan, depolymerized low molecular weight oligomers can also be used, and high molecular weight water-insoluble polymers or oligomers (n> 35) and low molecular weight water-soluble oligomers (2 ≦ n ≦ 35) or monomers can be used. Both can be used. An average molecular weight of about 50,000 to 1,500,000 is used, but from the viewpoint of smoothness, one of 500,000 to 1,500,000 is more suitable.

It should be noted that water-soluble ones can be blended as a bathing agent component as they are, but water-insoluble ones must be devised so that they are remarkably dispersed when added to bath water. For that purpose, in addition to the method using a solubilizing agent, for example, the following (A)
The method of denaturation as described above is used.

As the modified chitosan, various modified products such as a salt of chitosan and an organic acid or an inorganic acid, an N-substituted product, or a 0-substituted product of chitosan are also used in the present invention. Specific examples of these modified products are shown below together with a general formula showing a glucosamine unit in which a salt is formed or a substituent is introduced.

(A) Salt of chitosan with organic acid or inorganic acid (In the formula, X represents an anion residue of an organic acid or an inorganic acid.) Organic acids include acetic acid, propionic acid, butyric acid, lactic acid, malonic acid, succinic acid, citric acid, malic acid, tartaric acid, maleic acid, Fumaric acid, α- and β-alanine, glutamic acid, various amino acids such as acylglutamic acid having 12 to 18 carbon atoms, glycine, alkylbenzene sulfonic acid having 10 to 20 carbon atoms, aliphatic olefin sulfonic acid having 10 to 20 carbon atoms, carbon Examples thereof include alkyl phosphates of several 10 to 20, and examples of the inorganic acid include hydrochloric acid, sulfuric acid, phosphoric acid and the like. Of these, carboxylic acids such as lactic acid, succinic acid, malic acid, citric acid and tartaric acid are particularly preferable because they are addition components of a conventional bathing agent used in a foaming bath agent. This chitosan salt is particularly suitable for the present invention because of its excellent dispersibility in bath water.

(B) O-hydroxyalkyl chitosan (C) O-carboxyalkyl chitosan or salts thereof (In the formula, Z ₁ is —CH ₂ COOM, —CH ₂ —CH ₂ COOM, —CH ₂ —CH ₂ —
CH ₂ COOM (M represents hydrogen or a salt such as an alkali metal salt or an organic ammonium salt), and Z ₂ is H or Z ₁ . ] (D) N-acyl chitosan [R ₁ is an alkylcarbonyl group such as formyl, propionyl, butyryl and stearoyl, an alkenylcarbonyl group such as oleyl, a substituted alkylcarbonyl group such as chloroacetyl (-COCH ₂ Cl), glycyl and succinyl (-COCH ₂ CH ₂ COOH). Represents an acyl group. ] (E) N-alkylidene or N-arylidene chitosan (In the formula, R ₂ is H, an alkyl group such as —CH ₃ , or —C ₂ H ₅ ;
_{6 H 5, -C 6 H 4} NO 2, -C 6 H 4 F, -C 6 H 4 Cl, -C 6 H 4 OCH 3, -C
_{6 H 4 OH, -C 6 H} 3 (OCH 3) represents and _2. ) (F) O-acyl chitosan (Wherein, R ₃ is -COCH _3, an acyl group such as -COC ₂ H _5, R ₄ is H or -COCH _3.) (G) sulfated chitosan or a salt thereof (In the formula, Z ₁ is SO ₃ M, Z ₂ is H or Z ₁ , M is hydrogen or a salt such as an alkali metal or an organic ammonium salt, and R ′ is
Represents H or --SO ₃ M. ) (H) Phosphorylated chitosan salt (Where Z ₁ is Z ₂ represents H or Z ₁ , and M ₁ and M ₂ represent hydrogen or a salt such as an alkali metal or an organic ammonium salt. ) Among the above derivatives, (A), (B), (C),
(G) and (H) are water-soluble, and (D), (E) and (F) are water-insoluble.

In the present invention, the chitosan or its derivative is usually 0.1 to 10% by weight, preferably 0.5 to 10% by weight based on the total amount of the bath additive.
~ 5 wt% is added. The concentration of bath water used is 1 ppm to 10
It is good to set it to 0 ppm, preferably about 3 to 20 ppm.

The bathing agent in the present invention contains sodium carbonate and / or sodium hydrogen carbonate as an active ingredient. This sodium carbonate or sodium hydrogen carbonate, by itself, contributes to the cleansing of the skin when bathing, but when combined with the above-mentioned chitosan or a modified chitosan, it gives an unexpectedly non-greasy and smooth feel to the skin. , Synergistically improves the smoothness and refreshing feeling on the skin after bathing. From this, it is considered that chitosan or its modified product causes a more uniform adsorption / deposition phenomenon on a cleaner skin surface and forms a thin layer with good affinity.

In this case, it is appropriate that the total amount of sodium carbonate and sodium hydrogen carbonate used is usually 10 to 80% by weight with respect to the total amount of the bathing agent, and the dosage form is powder, granules, tablets or liquid. Either of them may be used. However, it is difficult to disperse the hot water in a bath in which a large solid of water-insoluble chitosan is produced when it comes into contact with an alkali such as sodium carbonate, and thus it is necessary to use an appropriate dosage form such as a two-pack type. . Generally, the concentration of bath water such as sodium carbonate is 5 to 300p.
It is reasonable to use pm.

In the bath agent of the present invention, in addition to the above essential components, sodium chloride, potassium iodide, ammonium chloride, sodium sulfate, aluminum sulfate, potassium sulfide, potassium sulfate, boric acid, borax, silicic anhydride, metasilicic acid, Sodium sulfite, phosphoric acid, sodium hydrogen phosphate, potassium dihydrogen phosphate, sodium silicate, sodium polyphosphate, calcium hydrogen phosphate, sodium phosphate, may be added inorganic salts and inorganic acids such as flowers of sulfur hot water, Furthermore,
In the bath agent composition of the present invention, in addition to the above components, if necessary, crude drugs, binders, essential oils, oils, vitamins, amino acids, proteolytic enzymes, humectants, seaweeds and other components. It can also be added. Specific examples thereof are shown below.

Herbal medicines: Amaranthus japonicus, Amaranthus japonicum, Prickly pear, Calyx, Koboku, Senkyu, Spruce, Touki, Ginger,
Ogon, Sanshin, Guyo, aloe, carrot, cinnamon, peony, peppermint leaf, Ogon, Bukuro,
Gingerbush, falcon, juniper, saffron, psyllium,
Fennel, Chinpi, Gampi, Chamomile, Japanese radish, Willow, Camphor, Elderberry, Sokuzu, Naginatakouju, Yatsude, Bunting, Mugwort, Stinkweed, Yuzu, Red sea bream, Peach, Prickly sardine, Stinkweed, Steller's sardine, Stinkweed, Steller's sea bream, Steller's sardine, Stinkweed, Steller's sea bream, Steller's spruce, Sardine sardine Rosemary, cabano, pine, yalensula, lantana, licorice, kissweed, marronnier In addition, these may be the powder or an extract.

Adhesive: Casein, sodium carboxymethyl cellulose, water-soluble gelatin, pectin, starch, methyl cellulose, ethyl cellulose, sodium alginate, polyvinyl alcohol, polyvinyl pyrrolidone, polyvinyl methyl ether, polyethylene glycol, karaya gum,
Locust bean gum, tracant gum, carrageenan,
Carbopol, red gum, agar, etc.

Essential oils: peppermint oil, jasmine oil, pepper oil, cypress oil, spruce oil, ryu oil, turpentine oil, cinnamon oil, bergamot oil, mandarin oil, ginger oil, pine oil, lavender oil,
Bay oil, clove oil, hiba oil, rose oil, eucalyptus oil, lemon oil, thyme oil, peppermint oil, rose oil, sage oil, menthol, cineole, eugenol, citral, citronellal, borneol, linalool, geraniol, camphor, thymol. , Spilanthol, pinene, limonene, terpene compounds, etc.

Oils: olive oil, soybean oil, almond oil, peanut oil, castor oil, coconut oil, herm oil, turtle oil, nuka oil, avocado oil, mink oil, egg yolk oil, beef tallow, lanolin, squalene,
Jojoba oil, silicone, liquid paraffin, petrolatum, paraffin, etc.

Vitamin: vitamin A, vitamin B, vitamin C, vitamin D, vitamin E, vitamin F, vitamin K, vitamin P, vitamin U, carnitine, ferulic acid, α-oryzanol,
α-lipoic acid, orotic acid and its derivatives, etc.

Amino acids: Glycine, alanine, valine, leucine, isoleucine, serine, threonine, phenylalanine, tyrosine, tryptophan, cystine, cystine, methionine, proline, hydroxyproline, aspartic acid,
Glutamic acid, arginine, histidine, lysine and their derivatives, etc.

Proteolytic enzymes: pepsin, trypsin, chymotrypsin, cathepsin,
Papain, promeline, fiucin, sterilized yeast, mold-derived proteade, etc.

Moisturizer: Polyhydric alcohol such as propylene glycol and glycerin. Peptides, polyamic acids, collagen hydrolysates and their derivatives. Mucopolysaccharides such as hyaluronic acid. Nucleic acid,
Proteins such as elastin and their derivatives.

Seaweeds: Green algae plants such as Anaasa, Mill, Usubaaonori, Aedes aegypti, Zuyaoniori, Kasanori, Heraiwatsuda, Hanemo, Nagamiri, etc .; Alame, Honda Walla,
Plum algal plants such as sea turtles, sugimori, and hagfish; Alba amanori, Asakusanori, Susabinori, sea urchin, hirakusa, maksa, triasi, hanafunori, fukuronori, hikadenori, cypressania, crested crested myrtle, crested crested myrtle, swordfish, scorpionfish, scorpionfish, spermaceae. , Red algae plants such as, dragonfly, and barnacle. In addition, these may be the powder or an extract.

Other Ingredients: Tar dyes (xanthine, etc.) for pharmaceuticals, quasi drugs and cosmetics, fragrances, bactericides, etc.

〔effect〕

As described above, the bath agent of the present invention gives a moisturized moisture to the skin after bathing, gives a non-greasy, smooth and pleasant smooth silky feeling.

After taking a bath with the bath agent of the present invention, the skin is not moisturized and the skin does not become tight, and a smooth feel with a pleasant feel is obtained. It gives consumers a refreshing and refreshing feeling, and its commercial value is extremely high. Further, chitosan and its modified products are generally said to be highly safe, and the bath salt of the present invention is also suitable in this respect.

〔Example〕

 Next, the present invention will be described in more detail with reference to examples.

The bath agents obtained in the following examples were tested and evaluated as follows.

Test method: By 5 female panelists, one of the left and right forearms was used as a 42 ° C water bath containing 200 ppm of the standard bath salt, and the other was used as a 42 ° C bath containing 200 ppm of the bath salt according to the present invention. , 10 each
After soaking for 10 minutes, the smoothness and moist feeling (moisture feeling) of the skin after 10 minutes of towel drying were evaluated according to the following criteria by paired comparison.

Evaluation Criteria (I): ⊙ ... Has a very excellent effect compared to the standard product.

○: It has an excellent effect compared to the standard product.

△ …… Has a slightly better effect than the standard product.

×: Only as effective as or less than the standard product.

The standard component composition is as follows.

Component composition Ingredient composition of standard (wt%) Sodium 5 sodium bicarbonate 45 sulfate balance uranine dye 0.3 Perfume 0.2 Example 1-3, the bath agent of the composition shown in Comparative range 1-3 Table 1 It was prepared and its performance test was conducted. The blending amount (%) is based on weight. The test results are shown in Table 1 in relation to the component composition of the composition.

Examples 4 to 10 The following practical tests were conducted by female panelists aged 30 to 45. Day 1; Hot water containing 200 ppm of a standard granular bath agent (standard product) consisting of sodium carbonate 5%, sodium hydrogen carbonate 35%, sodium sulfate balance, lanolin 1%, uranine pigment 0.3%, and fragrance 0.2% After taking a normal bath, I took a bath and showered lightly, and wiped my body with a towel. The second day: 20 bath additives above in a new bath
The chitosan carboxylate salt (1% solution) described below was added to 5 ppm, and the mixture was bathed in the same manner as above. The smoothness and moisturizing feeling (moisture feeling) of the skin after bathing on the first day and the second day were evaluated according to the above-mentioned evaluation standard (I). The results are shown in Table-2.

Examples 11 to 13 Further, bath additives having the following composition were prepared and practical tests were conducted. All of the bath salts were excellent in that they gave the skin moisture and smoothness.

Example 11 (Powder) Sodium hydrogen carbonate 30.0 (wt%) Sodium carbonate 10.0 Succinic acid 25.0 Adipic acid 8.8 Sodium sulfate 14.6 Sodium hydrogen phosphate 5.0 Limonene 1.0 Tocopherol acetate 0.1 Carrot 1.0 Lavender oil 1.0 Lanolin 0.5 Aspartic acid 0.2 Pepsin enzyme ( 150U) 0.3 Ethylene glycol chitosan 1.0 (Molecular weight 70,000) Perfume 1.5 (% by weight) Dye proper amount Example 12 (granular) Sodium hydrogen carbonate 30.0 (% by weight) Sodium carbonate 15.0 Citric acid 10.0 Succinic acid 20.0 Sodium sulphate 14.9 Sodium carboxymethyl cellulose sodium 1.0 α-Pinene 1.0 Tocopherol acetate 0.1 Timpy 0.5 Touki 0.5 Vitamin E 0.3 Dimethyl silicone 0.2 Sodium sulfite 2.0 Phosphorylated chitosan Na salt (molecular weight 600,000) 3.0 Fragrance 1.5 Dye Suitable amount Example 13 (tablet) Sodium bicarbonate 30.0 (heavy) %) Sodium carbonate 5.0 Succinic acid 20.0 Malic acid 8.4 Sodium sulfate 29.1 Polyethylene glycol 2.0 (Molecular weight 6000) α-Pinene 1.0 Tocopherol acetate 0.1 Timpy 0.5 Aloe 0.5 Papain enzyme (200U) 0.1 Zinc white 0.5 Propylene glycol Chitosan 1.0 (Molecular weight 300,000) Vitamin B-2 0.3 Perfume 1.5

Claims (4)

[Claims] 1. A bathing agent comprising chitosan or a modified product thereof in a bathing agent containing sodium carbonate and / or sodium hydrogen carbonate as an active ingredient. 2. The bath salt according to claim 1, wherein the modified chitosan is a chitosan carboxylate. 3. The chitosan carboxylate is chitosan lactate,
At least one selected from chitosan succinate, chitosan malate, chitosan citrate and chitosan tartrate
The bath salt according to claim 2, which is a seed. 4. The bath salt according to claim 1, wherein the modified chitosan is chitosan alkyl phosphate.